Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Jul
Sun
20 Jul
Mon
21 Jul
Tue
22 Jul
Real-time AQI (Monitoring Station in Nantou)
南投
208
PM2.5
14
PM10
25
O3
0.2
CO
1
SO2
15
NO2
竹山
169
PM2.5
14
PM10
29
O3
0.2
CO
4
SO2
11
NO2
埔里
183
PM2.5
11
PM10
37
O3
0.2
CO
4
SO2
6
NO2
Air quality in the last 12 months (Nantou)
|
2025/06
|
46
|
37
|
17
|
26
|
29
|
23
|
19
|
24
|
21
|
22
|
20
|
25
|
28
|
29
|
33
|
29
|
26
|
28
|
23
|
20
|
20
|
25
|
29
|
30
|
21
|
17
|
17
|
22
|
16
|
15
|
|
|
2025/05
|
51
|
53
|
48
|
35
|
42
|
40
|
46
|
52
|
48
|
31
|
29
|
38
|
31
|
30
|
24
|
22
|
22
|
17
|
25
|
31
|
22
|
37
|
42
|
21
|
51
|
40
|
25
|
21
|
12
|
36
|
44
|
|
2025/04
|
23
|
37
|
44
|
42
|
48
|
47
|
53
|
56
|
49
|
43
|
36
|
18
|
111
|
101
|
82
|
70
|
65
|
50
|
48
|
30
|
40
|
41
|
33
|
24
|
20
|
28
|
31
|
44
|
31
|
36
|
|
|
2025/03
|
61
|
33
|
25
|
20
|
13
|
16
|
36
|
43
|
28
|
29
|
42
|
36
|
31
|
28
|
35
|
27
|
50
|
47
|
46
|
47
|
48
|
47
|
61
|
70
|
54
|
35
|
49
|
52
|
53
|
20
|
16
|
|
2025/02
|
38
|
17
|
23
|
68
|
56
|
35
|
27
|
49
|
34
|
31
|
39
|
63
|
71
|
50
|
41
|
62
|
67
|
38
|
37
|
23
|
21
|
33
|
18
|
65
|
59
|
54
|
63
|
77
|
|||
|
2025/01
|
49
|
35
|
34
|
30
|
36
|
49
|
64
|
45
|
50
|
42
|
34
|
46
|
44
|
41
|
78
|
52
|
54
|
41
|
45
|
51
|
80
|
48
|
43
|
20
|
33
|
35
|
20
|
43
|
48
|
32
|
38
|
|
2024/12
|
38
|
45
|
32
|
32
|
27
|
30
|
24
|
61
|
26
|
20
|
25
|
20
|
26
|
59
|
74
|
48
|
38
|
43
|
43
|
20
|
42
|
56
|
21
|
20
|
18
|
45
|
64
|
73
|
37
|
39
|
48
|
|
2024/11
|
20
|
18
|
36
|
38
|
48
|
39
|
34
|
30
|
25
|
24
|
20
|
25
|
26
|
22
|
22
|
13
|
23
|
33
|
19
|
13
|
18
|
27
|
32
|
22
|
28
|
20
|
39
|
31
|
41
|
39
|
|
|
2024/10
|
18
|
15
|
19
|
16
|
21
|
20
|
17
|
17
|
37
|
44
|
43
|
32
|
25
|
27
|
26
|
27
|
36
|
35
|
31
|
22
|
28
|
36
|
44
|
37
|
23
|
24
|
24
|
24
|
36
|
38
|
25
|
|
2024/09
|
29
|
29
|
27
|
26
|
23
|
20
|
20
|
14
|
22
|
42
|
52
|
34
|
18
|
22
|
29
|
22
|
28
|
28
|
23
|
21
|
25
|
10
|
12
|
15
|
25
|
15
|
19
|
24
|
25
|
20
|
|
|
2024/08
|
28
|
43
|
43
|
35
|
36
|
22
|
27
|
38
|
42
|
46
|
48
|
50
|
46
|
36
|
29
|
14
|
20
|
19
|
15
|
12
|
21
|
27
|
36
|
42
|
34
|
37
|
47
|
43
|
40
|
32
|
32
|
|
2024/07
|
21
|
19
|
19
|
21
|
25
|
20
|
17
|
18
|
16
|
17
|
26
|
28
|
24
|
23
|
21
|
18
|
21
|
19
|
26
|
24
|
21
|
20
|
25
|
19
|
17
|
18
|
21
|
28
|
23
|
18
|
15
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
*: primary pollution